I've encountered this multiple times in the past.
Two years ago when I got my Corsair m65, I decided to set the polling rate to 1000hz because that should be better, right? Well immediately after that, I noticed that youtube videos would lag as soon as I started to move the mouse, Destiny 2 was unplayable, and a number of other games behaved oddly (Minecraft, PUBG, whatever else I was playing at the time). It took me three days to determine that my mouse wasn't defective and realize that it was the polling rate actually being detrimental to my pc (at the time a measly AMD FX6300 and a GTX 750). Lowered the polling rate to 500hz, and everything was fine afterwards. Stopped worrying about it.
Fast forward a year later, I decided to try 1000hz again. In the last year I had gotten a few upgrades (AMD Ryzen 7 1700 and a GTX 980) and decided I should give a higher polling rate another shot. Well, it seemed to work for a while, everything functioned well enough, Youtube no longer lagged and D2 was still playable, so problem solved right? Well over time, I would notice random slowdowns in almost every game, for no explainable reason. The problem stood out the most in Minecraft, where I would get occasional "extreme" mouse acceleration for no clear reason, as well as frame rate dips left and right. Eventually it was annoying me so much that I started to dig around to find out what could be causing the issue, and eventually stumbled upon some posts talking about polling rate. I then remembered I had upped the polling rate at some point, turned it down, and voila, spontaneous acceleration issues gone. All my games stopped dipping in frame rate, and life seemed better. But to this day, it still bugs me to think about it. Some of my friends keep their mice at 1000hz, and they never have a single mousing issue (and it shows, they're better at video games than I am!)
It would be nice if someone could do further investigating on the subject, maybe dig deeper to determine what the overall root cause of these seemingly random cases of polling rate issues is, and wether or not it's just incapable hardware or if Windows needs a serious overhaul (which I think it does for a number of reasons, but I'll leave that for another thread).